Observation of total irradiance variability from Nimbus satellites

Observation of total irradiance variability from Nimbus satellites

The cavity pyrheliometer sensor aboard Nimbus 7 is now in its tenth year of operation. Results for 9 1 2 years show a decreasing trend through the end of solar cycle 21 of approximately −0.015% per year, a levelling off near solar minimum and an increasing irradiance for the beginning of cycle 22. T...

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Veröffentlicht in:Advances in space research 1988, Vol.8 (7), p.5-10
Hauptverfasser: Hickey, J.R., Alton, B.M., Kyle, H.L., Major, E.R.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Earth, ocean, space
Exact sciences and technology
Other topics on the solar system
Solar Physics
Solar system
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Zusammenfassung:The cavity pyrheliometer sensor aboard Nimbus 7 is now in its tenth year of operation. Results for 9 1 2 years show a decreasing trend through the end of solar cycle 21 of approximately −0.015% per year, a levelling off near solar minimum and an increasing irradiance for the beginning of cycle 22. Through April 1988 the irradiance has increased about 0.06% above the minimum value which was about 0.08% below the highest values obtained near solar maximum. The rise appears more rapid than the decline.
ISSN:0273-1177
1879-1948
DOI:10.1016/0273-1177(88)90164-0